Assembler slide bar brake



June '13, 1933. H. D. REESE ET AL ASSEMBLER SLIDE BAR BRAKE Filed Feb. 24, 1932 INVENTOR5 712197 ,B R5566 4M0 Rom/v0 1111121216 BY W I I ATTORNEY.

Patented June 13, 1933 1 UNITED STATES PATENT OFFICE y HARRYD. REESE Ann ROLAND HARRIS, or narnorrtiricnreau AssEMBLnR SLIDE BAR imam:

Application filed-February 24, 1932. Serial No. 594L832.

Our invention relates to a new and useful improvement in a braking mechanism for an assembler slide on linotype and intertype machines, and has for its object the provilhli sion of a braking mechanismfof. thisclass,

inwhich the assembler slide will positively beheld to'its moved position, and a dislocation of the slide, resultingfroma too great a movementuwhen the matrices are fed, willbe prevented. l .y a

Another objectof the invention; is. the provisionq in a braking mechanism of this class; of a structure wherebythe assembler slide will be moved upon the successive .feeding' of each matrix and exact distance determined b the, thickness of the matrixso asto avoi an improper assembly of the matrices on a dislocation of the same, as they arefed into the assembler box. r

Another object of the invention is the y provisionin adevice of this classof a braking vmechanism for the assembler slide whereby longitudinal play of the assembler slide will be prevented. i w Another object of the invention is the provision of an assembler slide braking mechanism, so constructed and arranged that the wear of the various parts will be reduced to a minimum, thus eliminating the j necessity of adjustment, repair and" replacement.

Another object of the invention is a the provision of a braking mechanism of this class, which will be positive, and which may be easily and quickly released from operative position to permit the return of the assembler slide to its initial or starting posi tion. i

Another object of the invention is the provision of an assembler slidebraking mechanism which may be easily and quickly assembled, and which will consist of a minimum number of parts, and which will be durable and highly efficient in use. Other objects will appear hereinafter.

The invention consists in the combination and arrangement of scribed and claimed. i

The invention will be best understood by a reference to the accompanying drawing which forms a part of this specification, and in which, i a y Fig. l is aside elevational view of the invention showing it applied to a linotype machine, illustrated in dotted lines.

Fig. 2 is a sectional view taken on line 2-2ofFig.1."

Fig. 3 is a fragmentary side elevational view showing the braking mechanism in inoperative position with the trip removed.

The invention is adapted for use on linotype and intertype machines and may be readily substituted 1 for the braking mechanism customarily used on the assembler parts hereinafter deslide of such machines, andin the drawing I have shown in dotted lines a sufficient detail of the 1 machine to illustrate the applicants mounting, and use olftheinvention whichis shown in "full lines. In the drawing a portion ofthe machine frame 7 is in dicatedlbeneath which extends the elevator 8, the matrices 9 which are discharged by the star wheel 10 are. spaced by the space bandsll. The assembler bar 12 which is adapted toslide longitudinall is provided with afinger .13 at one-end. spring 14 is attached to the. slidebar 12 and adapted upon release of the braking mechanismto return the slide bar to its initial or starting positionwith the finger, 13 in close proximity to the star wheellO. This assembler '80 slide 12 is provided with rack teeth 15 extending inwardly from its rear end on the lower edge thereofso as to mesh with the teeth of the pinion 16, which is cut away i on one face asat-l7, and journaled in this cut away or recessed portion 17 on the boss 18, which projects inwardly from the supporting bracket 19. This bracket 19 is swingably mounted by the screw 20 ona suitable supporting portion 21 on the lino type machine with which used. A nut 22 is threaded on the screw which is projected through the bracket 19. This nut is provided with a flange 24 which enga es one end of the spring 25, the other end of which engages the washer 26 so that by the pressure of the spring 25, which may be adjusted by the nut 27, the gear 16 is held firmly against the boss 18, and the resistance of the gear 16 to rotation may be adjusted by adjusting the compression of the spring 25.

A leg 28 projects from one side of the bracket 19, and is connected to one end of the spring 29, the other end of which is at-' tached to the type machine with which used,

tained rocked to position so that the pinion 16 is in mesh with the teeth 15 formed on the assembler slide 12. The construction is such that as the matrices 9 are fed downwardly bythe star wheel 10 the assembler slide bar 12 will move longitudinally effecting a rotation of the pinion 16, because of the resistance of the pinion 16 to rotation an undue movement of the slide bar 12 in the other direction will be prevented and the slide bar will be moved with each succeeding matrix which is fed downwardly, a distance equal to the thickness of the matrix thus preventing a displacement of the matrices or a dislodgment of the same.

We have provided a trip whereby, when the line of type is-fed upor elevated the slide bar 12 may be released so that it may be returned to its normal or initial position by the finger 141. This trip comprises the bar 30 which is pivotally mounted intermediate its ends by a suitable pivot pin 31. One end of the bar 30 is provided with the engagement pin 32 which will be engaged by the elevating mechanism. The other end is adapted to engage with an adjusting screw 33 projected through the laterally turned portion 34: of the bracket 19 so that as the engagement pin 32 is engaged upon the elevating of the type, the bar 30 will be rocked downwardly to move the pinion 16 into the position shown in Fig. 3. Upon disengagement of the pinion 16 from the rack teeth 15 the slide bar will be drawn to its normal or starting position by the spring 14 so that, the pinion 16 will engage in the cut away portion 35 of the slide bar and adjacent the end tooth of the rack teeth 15, so that upon a feeding of the first matrix onto the slide bar the teeth 15 will have meshed with the teeth 16 and the gear 16 will efl'ect the braking on the slide bar 12. A finger grip 36 is formed on the laterally turned portion 34 so that a bracket 19 may be manually rocked, if desired.

It is believed obvious from the directions given that the particular method of braking may be easily and quickly mounted on a standard linotype or intertype machine, and

the use of braking shoes in which a brake lining, which it is necessary to frequently replace and adjust, is eliminated. Conse quently the disadvantages of the brake shoe are avoided, and the added advantages enumerated attained.

l/Vhile we have illustrated and described the preferred form of construction, we do not wish to limit ourselves to the precise details of structure shown, but desire to avail ourselves of such variations and modifications as come within the scope of the amended claims.

Having thus described our invention, what We claim as new and desire to secure by Letters Patent is:

1. An assembler slide bar mechanism of the class described comprising: an assembler slide having teeth formed on one of its faces; a rotatable pinion engageable with said teeth and rotatable upon sliding movement of said slide; and means for placing resistance on said pinion for yieldably resisting rotation thereof and maintaining the resistance uniform for all positions of movement of said slide.

2. A slide bar bra-king mechanism of the class described comprising: a slide bar having teeth formed on one of its faces; a rotatable pinion meshing with said teeth; yieldable means for resisting rotation of said pinion; andmeans for adjusting the tension of said yieldable means and maintaining the resistance uniform for all positions of movement of said slide bar.

3. A slide bar braking mechanism of the class described comprising: an assembler slide bar having teeth formed on one of its sides; a rotatable pinion meshing with said teeth and rotatable upon slidable movement of said bar; yieldable means for resisting rotation of said gear; and yieldable means for normally maintaining said gear in mesh with said teeth. 3

4. A slide bar braking mechanism of the class described comprising: an assembler slide bar having teeth formed on one of its sides; a rotatable pinion meshing with said teeth and rotatable upon slidable movement of said bar; yieldable means for resisting rotation of said gear; and yieldable means for normally maintaining said gear in mesh with said teeth; and means for moving said gear out of mesh with said teeth.

5. A'slide bar braking mechanism of the class described comprising a slide bar having teeth formed on one of its sides; a rotatable pinion meshing with said teeth; yieldable means for resisting rotation of said pinion; means for adjusting the tension of said resisting means; yieldable means for normally maintaining said pinion in mesh with said teeth;- and rockable means for moiijng said pinion out of mesh with said teet V 6. A slide bar braking mechanism of the class described comprising: a slide bar having teeth formed on one of its faces; a movable tooth bearing member meshing With said teeth and movable upon slidable move ment of said bar; yieldable means for resisting movement of said movable means; means for adjusting the tension of said resistance means for disengaging the teeth of said movable member from the teeth of said bar.

In testimony whereof We have signed the foregoing specification. 7

HARRY D. REESE, ROLAND HARRIS. 

